公开(公告)号：US10992308B1

公开(公告)日：2021-04-27

申请号：US16862385

申请日：2020-04-29

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sthalekar ,  Leon Metreaud ,  Hakan Inanoglu ,  Xiangdong Zhang

IPC: H03M1/50 ,  H03M1/18 ,  G04F10/10 ,  G04F10/00

Abstract: An in-situ delay measurement is performed for an envelope-tracking power amplifier of an RF input signal. Because the delay measurement is in-situ, the delay measurement avoids the necessity to down convert and digitize a version of an RF output signal from the envelope-tracking power amplifier.

公开(公告)号：US20240429869A1

公开(公告)日：2024-12-26

申请号：US18338282

申请日：2023-06-20

Applicant: QUALCOMM Incorporated

Inventor： Chirag Sthalekar ,  Leon Metreaud ,  Sanjay Nandipaku ,  Hakan Inanoglu ,  Paolo Enrico De Falco ,  Antonino Scuderi ,  Ryan Scott Castro Spring

IPC: H03F1/02 ,  H03F3/24

Abstract: This disclosure provides systems, methods, and devices for wireless communications that support multiple antenna operation. In a first aspect, an apparatus for wireless communications includes an amplifier module comprising a first input node, a second input node, a first output node, a second output node, and a third output node, with the amplifier comprising a first processing path configured to couple the first input node to the first output node; and a second processing path configured to couple the second input node to the second output node in a first mode and to couple the second input node to the third output node in a second mode. Other aspects and features are also claimed and described.